zachgoldstein.engineering
Observed Aug 2, 2026, 21:24 UTC (12h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Up right now
Secured byLet's Encrypt
1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zachgoldstein.engineering actually stands on - every host below is a signed observation
zachgoldstein.engineering
A / AAAA
104.198.14.52
unattributedserves the site
NS
ns-1211.awsdns-23.orgns-1636.awsdns-12.co.ukns-506.awsdns-63.comns-982.awsdns-58.net
awsdns-23.org + awsdns-12.co.uk + moreanswers its DNS
TLS
zachgoldstein.engineering
Let's Encryptissued its certificate
DNS Records
A 1
104.198.14.52
NS 4
ns-1211.awsdns-23.orgns-1636.awsdns-12.co.ukns-506.awsdns-63.comns-982.awsdns-58.net
SOA 1
ns-506.awsdns-63.com awsdns-hostmaster.amazon.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
zachgoldstein.engineering |
C=US, O=Let's Encrypt, CN=YE1 | Sun, 20 Sep 2026 08:53:50 +0000 |
YE1 |
C=US, O=ISRG, CN=Root YE | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YE |
C=US, O=Internet Security Research Group, CN=ISRG Root X2 | Thu, 02 Sep 2032 23:59:59 +0000 |
ISRG Root X2 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (1)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_a6cad962a5a45bac- Output Hash
894ceb5fed0daf7089961f1cc3b42c3d1c788004beffd439a1c6d1d5e2140b03- Signature
ed25519:27c030d6458e0cfffe4769e768e8fa2ddd4f6090ae83247703ea5df6142d19e8618bd852e9e898ed9e8ca68c93a673bf925847120e9df1d511640024eb550507- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast